JP2011096290A - Drinking water supply apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drinking water supply apparatus, with reduced energy loss, relating to the control of cooling and/or heating of drinking water. <P>SOLUTION: The drinking water supply apparatus includes first and second tanks (cold-water tank 10 and hot-water tank 40) for accumulating drinking water (4) supplied from a drinking water container (gallon bottle 6); a cooling means (cooling device 22) for cooling the drinking water in the first tank; a heating means (hot-water heater 42) for heating the drinking water in the second tank; a first temperature detection means (cold-water sensor 20) for detecting the temperature of the drinking water inside the first tank; a second temperature detection means (hot-water sensor 54) for detecting the temperature of the drinking water inside the second tank; and a control means (controller 64). During a time zone of normal operation, the cooling means is operated corresponding to the detected temperature of the first temperature detection means to control the drinking water in the first tank to a cold water set temperature, and the heating means is operated, corresponding to the detected temperature of the second temperature detection means to control the drinking water in the second tank to a hot-water set temperature. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

The present invention relates to a drinking water supply apparatus that cools or heats drinking water provided in bottle units and provides cooled drinking water and heated drinking water in a single device.

  A drinking water supply device (water dispenser) that cools or heats drinking water such as mineral water supplied in a bottle and provides it as drinking water has become widespread. This drinking water supply device is not only used for supplying beverages in offices and the like, but is also popular in general households.

  With respect to such a drinking water supply apparatus, Patent Document 1 discloses that when drinking water is cooled and heated, a freezing point or a boiling point is found and temperature control is performed in the vicinity thereof.

JP 2000-227975 A (summary, FIG. 1 etc.)

  By the way, Patent Document 1 discloses that cooling and / or heating of drinking water is automatically set and controlled to a temperature close to a freezing point and a boiling point in response to the installation status of the apparatus and the type of drinking water. However, the temperature that is automatically set may differ from the temperature that the user expects, and even if such control is effective in the high-use time zone, the user is not used in the low-use time zone. Even if it is wasted even if it is controlled to the expected temperature, it cannot be denied.

  Then, the objective of this invention is providing the drinking water supply apparatus which reduced energy loss regarding control of cooling and / or heating of drinking water.

  Another object of the present invention relates to the control of cooling and / or heating of drinking water, and is to reduce energy loss during times of low use.

Another object of the present invention relates to the control of cooling and / or heating of drinking water, and is to speed up the response to temperatures different from normal high and low temperatures.

  In order to achieve the above object, the drinking water supply device of the present invention includes a first tank for storing drinking water supplied from a drinking water container to be installed, and cooling for cooling the drinking water in the first tank. Means, a second tank for storing the drinking water supplied from the drinking water container, a heating means for heating the drinking water in the second tank, and the drinking water in the first tank The first temperature detecting means for detecting the temperature of the second tank, the second temperature detecting means for detecting the temperature of the drinking water in the second tank, the time zone for normal operation and the time zone for standby operation are set. The cooling means is operated in accordance with the temperature detected by the first temperature detecting means during the normal operation time period, and the drinking water in the first tank is controlled to a cold water set temperature, and the second The heating means according to the detected temperature of the temperature detecting means It is operated, and a control means for controlling the water of the second tank to the hot water set temperature.

  In order to achieve the above object, in the drinking water supply apparatus, more preferably, the warm water set temperature in the standby operation time zone is set to a value closer to room temperature than the set temperature in the normal operation time zone. May be.

In order to achieve the above object, the drinking water supply apparatus preferably includes a forced temperature change switch, and the control means increases or decreases the hot water set temperature based on an operation of the forced temperature change switch. The heating temperature of the heating means may be controlled by changing to a value, or the cooling temperature of the cooling means may be controlled by changing the cold water set temperature to a higher or lower value.

  According to the present invention, any of the following effects can be obtained.

  (1) Since unnecessary heating and cooling can be prevented during the standby operation time, energy saving can be achieved.

  (2) Since the set temperature on the hot water side is close to room temperature, heating energy can be reduced and energy saving can be achieved.

(3) The user can supply drinking water having a heating temperature higher or lower than the set temperature for normal operation only by operating the forced temperature change switch.

It is a figure which shows the drinking water supply apparatus which concerns on 1st Embodiment. It is a figure which shows the principle of supply or replenishment of drinking water. It is a perspective view which shows the external appearance of a drinking water supply apparatus. It is a figure which shows the structural example of the control apparatus of a drinking water supply apparatus. It is a figure which shows an example of the display and operation part of a drinking water supply apparatus. It is a flowchart which shows an example of the process sequence of heat retention operation | movement. It is a flowchart which shows an example of the process sequence of energy-saving heat retention operation | movement. It is a figure which shows the drinking water supply apparatus which concerns on 2nd Embodiment.

[First Embodiment]

  The first embodiment of the drinking water supply apparatus of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing an outline of a drinking water supply apparatus according to the first embodiment, FIG. 2 is a diagram showing a mechanism for supplying drinking water of a gallon bottle, and FIG. 3 is a diagram showing an example of an external configuration thereof. It is.

  For example, a gallon bottle 6 is installed in the upper part of the housing 3 of the drinking water supply device 2 as a bottle containing the drinking water 4, and the drinking water 4 in the gallon bottle 6 is supplied from the water receiving port 8 to the first tank. It is supplied to a certain cold water tank 10. The drinking water 4 in the cold water tank 10 is filled up to the water level Lr (FIG. 2) in contact with the opening 12 of the gallon bottle 6. When the water level Lx (FIG. 2) falls below the opening 12, the air A enters the gallon bottle 6 through the cold water tank 10 from the opening 12. As the air A enters, the drinking water 4 is supplied from the gallon bottle 6 to the cold water tank 10 as indicated by the arrow B, and when the water level rises and the opening 12 is closed, the drinking water 4 from the gallon bottle 6 is filled. The fall of is stopped. For this reason, the drinking water 4 is supplied to the cold water tank 10 from the gallon bottle 6 according to consumption of the drinking water 4.

  A separation plate 16 is installed in the cold water tank 10, and the drinking water 4 in the cold water tank 10 is divided into an upper layer portion and a lower layer portion by the separation plate 16. For example, an evaporator 18 is installed in the cold water tank 10 as a cooling means, and the evaporator 18 is installed on the lower layer side partitioned by the separation plate 16, so that the drinking water 4 on the lower layer side is cooled. The The cold water tank 10 is provided with a cold water sensor 20 as a first temperature detecting means, and the temperature of the drinking water 4 in the cold water tank 10 is detected by the cold water sensor 20. For example, a thermistor thermometer is used for the cold water sensor 20. A cooling device 22 installed at the bottom of the housing 3 is connected to the evaporator 18, and a compressor 24, a dryer 26, and a condenser 28 are connected to the cooling device 22 by a refrigerant pipe 30. A capillary tube 32 is installed in the middle.

  A cold water supply pipe 34 is connected to the bottom of the cold water tank 10, and a cold water electromagnetic valve 36 is installed in the cold water supply pipe 34. When the cold water electromagnetic valve 36 is opened, drinking water cooled from the cold water tank 10 is provided. 4 is supplied from the cold water supply port 38.

  A hot water tank 40 as a second tank is installed in the lower part of the cold water tank 10. The warm water tank 40 is provided with a warm water heater 42 as a heating means, and the warm water heater 42 heats the drinking water 4 in the warm water tank 40.

  In the hot water tank 40, a water supply pipe 46 having an opening 44 on the center upper surface of the separation plate 16 is installed through the cold water tank 10. That is, the water supply pipe 46 extends from the central upper surface of the separation plate 16 to the bottom side of the hot water tank 40. A hot water supply pipe 48 is connected to the upper part of the hot water tank 40, and a hot water electromagnetic valve 50 is installed in the hot water supply pipe 48. When the hot water electromagnetic valve 50 is opened, drinking water in the hot water tank 40 is provided. 4 is taken out from the hot water supply port 52. The amount of drinking water 4 taken out from the hot water supply port 52 is supplied from the cold water tank 10 to the hot water tank 40 through the water supply pipe 46. The drinking water 4 corresponding to the water level drop in the cold water tank 10 is supplied from the gallon bottle 6 as described above.

  The hot water tank 40 is provided with a hot water sensor 54 as second temperature detecting means, and the temperature of the drinking water 4 is detected by the hot water sensor 54. For example, a thermistor thermometer is used for the hot water sensor 54. A drain pipe 56 is connected to the bottom of the hot water tank 40, and the drain pipe 56 is opened and closed by a drain plug 58.

  Further, a bypass pipe 60 is connected in parallel with the water supply pipe 46 between the bottom of the cold water tank 10 and the upper part of the hot water tank 40, and the bypass pipe 60 is opened and closed by a bypass valve 62. The bypass pipe 60 is a circulation passage for circulating the heated drinking water 4 in the hot water tank 40 to the cold water tank 10 when the bypass valve 62 is opened, in order to prevent a short cycle with the circulation passage. The opening 44 of the water supply pipe 46 is opened above the separation plate 16, and the bypass pipe 60 is opened at the bottom of the cold water tank 10. The direction of circulating water flow is not always one-way.

  In this drinking water supply device 2, a control device 64 is installed as a control means, and a display / operation unit and a control unit are installed in the control device 64, and detection information of the cold water sensor 20, the hot water sensor 54, etc. is taken in, Various controls such as cooling control, heating control, and energy saving control are performed.

  As shown in FIG. 3, the drinking water supply device 2 has a placement portion 66 for the gallon bottle 6 formed at the top of the housing 3, and a display / operation portion 68 installed below the placement portion 66. A water supply window 70 is opened, and a cold water supply port 38 and a hot water supply port 52 are installed therein. On the lower side of the cold water supply port 38 and the hot water supply port 52, a mounting portion 72 for placing a cup is formed.

  Next, the control device 64 will be described with reference to FIG. FIG. 4 is a diagram illustrating a configuration example of the control device. In FIG. 4, the same parts as those in FIG.

  The control device 64 is connected to a power source 74 and is supplied with power, and a display / operation unit 68 is installed together with a control unit 76 such as a microcomputer. The control unit 76 includes a processor 78, an I / O unit 80, a storage unit 82, a timer 84, and the like, which are connected via a bus 86. The display / operation unit 68 receives an operation input by a key switch or the like, displays a control output of the control device 64, and can be notified by a sound such as a buzzer.

  The processor 78 includes a CPU (Central Processing Unit) or an MPU (Micro Processor Unit), and executes an OS (Operating System) and an operation program stored in the storage unit 82. The I / O unit 80 is an input / output interface of the control unit 76, and a display / operation unit 68 is connected to obtain a display output, and an input signal is taken in. The cold water sensor 20, Detection signals are taken from the hot water sensor 54, and control signals for the compressor 24, the cold water electromagnetic valve 36, the hot water heater 42, the hot water electromagnetic valve 50, and the bypass valve 62 are obtained.

  The storage unit 82 includes a program storage unit, a RAM (Random-Access Memory), and the like. The storage unit 82 stores an OS and operation programs to be executed by the processor 78, setting values, various data, and the like, and performs arithmetic processing by the operation programs developed in the RAM. And control processing is executed. The timer 84 is a time measuring means, and time measurement required for control is executed.

  Next, the display / operation unit will be described with reference to FIG. 5A is a diagram illustrating a configuration of a panel unit that is an example of a display / operation unit, and FIG. 5B is a diagram illustrating an example of a display unit. In FIG. 5, the same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals.

  As shown in FIG. 5A, the display / operation unit 68 includes a display unit 88 for displaying time, an addition switch (SW) 90 for adding values, and a subtraction switch (SW) for subtracting values. ) 92, a setting mode switching switch (SW) 94 for switching to or canceling the setting mode, an energy saving switch (SW) 96 for switching to or canceling the energy saving mode, a timer 84 and the time are adjusted. Timer / clock switch (SW) 98 for start, stop / start switch (SW) 100 for performing start or stop, automatic high-temperature water circulation mode display section 102 for indicating that it is an automatic high-temperature water circulation mode, forced temperature change switch As an example, a high temperature setting command (SW) 104 for canceling a high temperature setting command different from that of normal operation or a forced temperature change switch As an example of a switch, a chilled water setting switch (SW) 106 for instructing or releasing a chilled water setting different from normal operation, a hot water supply switch (SW) 108 for instructing hot water supply, and a water supply switch for instructing water supply (SW) 110, hot water supply SW 108, and lock release switch (SW) 112 for instructing unlocking of water supply SW 110 are installed. Also, in the vicinity of the high temperature setting switch 104, a normal temperature display unit 114 that displays that the set temperature during normal operation is, for example, 85 [° C.] by lighting, and a high temperature display unit 116 that displays by lighting at a forced high temperature are installed. These are composed of lamps such as LEDs (Light Emitting Diodes). In the vicinity of the chilled water setting switch 106, a temperature display unit 118 that displays that the first chilled water set temperature, for example, 8 [° C.] is turned on, and the second chilled water set temperature, for example, 12 [° C.]. A temperature display unit 120 for displaying by lighting is installed, and these are also constituted by lamps such as LEDs.

  As shown in FIG. 5B, a clock / timer display unit 882, a timer display unit 884, stage display units 886 and 888, a start display unit 890, and an end display unit 892 are set in the display unit 88.

  Next, the control contents of the control device 64 will be described.

  A Initial state

  When the power is turned on, the cooling device 22 that cools the drinking water 4 is in the ON state (set temperature: 8 [° C.]), and the power supply control (for example, ON / OFF control) to the warm water heater 42 that warms the drinking water 4 is turned off. Put it in a state. When the power supply control of the hot water heater 42 is on, the heating can be adjusted by turning on / off the hot water heater 42. When the hot water heater 42 is off, the hot water heater 42 is always off. In this case, in order to prioritize hot water supply, operations of the lock release SW 112 and the hot water supply SW 108 are accepted. This is the case of using the initial air vent. However, the above description when the power supply control to the hot water heater 42 is in the OFF state is a case where the temperature detected by the hot water sensor 54, that is, the hot water temperature THh is, for example, 40 [° C.] or less.

  In the clock display of the display unit 88, the hour and the minute are displayed by blinking “-:-”, and the time is determined by pressing the addition SW 90, the subtraction SW 92, and the setting mode switching SW 94.

  The power supply control of the hot water heater 42 is executed by, for example, a long press of the start / stop SW 100, and the power supply control (ON / OFF control of the hot water heater 42) is turned off, and the long press time is pressed, for example, 2 [seconds]. Thus, for example, 85 [° C.] is set as the set temperature of the ON operation, and when the long press time is pressed, for example, 2 [sec] in the ON state, the OFF state is set. However, it is also possible to use the thermistor's self-heating characteristics to determine the presence or absence of water and to turn on / off the power supply control of the hot water heater 42.

  When the power supply control of the hot water heater 42 is shifted from the OFF state to the ON state, the energy saving mode is turned OFF. The same control is performed when returning from the power failure state to the power supply state. However, when the time of the energy saving mode has been set, the time is stored in the storage unit 82.

  The time setting method is executed in the clock display mode, and the time setting method in the energy saving mode is executed in the energy saving time setting mode.

  B Water supply operation

  When the water supply SW 110 is continuously pressed in the press-permitted state (unlocked), the cold water solenoid valve 36 is controlled to be opened and water is supplied. The cold water solenoid valve 36 is controlled to be open only while the water supply SW 110 is being pressed, and does not accept the operation of the hot water SW 108 while the water supply SW 110 is being pressed. Since water supply and hot water supply are not performed simultaneously, safety is ensured.

  C Cold water switching operation

  When the cold water setting SW 106 is continuously pressed, the setting of the cold water temperature is changed. For example, if pressing is continued, the set temperature is changed as follows: 8 [° C.] → 12 [° C.] → 8 [° C.] →.

  D Unlock operation

  When the lock release SW 112 is pressed, the hot water supply SW 108 and the water supply SW 110 are unlocked and the pressing is permitted. At this time, the unlock display portion 122 set on the unlock SW 112 is lit in red, for example, indicating that the lock is released. This unlocked state is limited, and for example, when there is no operation of hot water supply SW 108 for 10 seconds, the unlocking is invalidated, the unlocking display unit 122 is turned off, and the locked state is displayed.

  When the lock release SW 112 is pressed again during unlocking, the unlocking is invalidated, the unlocking display unit 122 is turned off from red, and shifts to the locked state.

  When the hot water supply switch 108 or the water supply switch 110 is pressed during unlocking, the lock release function is disabled 10 seconds after the hot water supply switch 108 or the water supply switch 110 is turned off, and the lock release display unit 122 is turned off.

  E Hot water supply operation

  When hot water supply SW 108 is continuously pressed in the press permission state (unlocked), hot water solenoid valve 50 is controlled to open and hot water is supplied. The hot water solenoid valve 50 is in an open state while the hot water supply SW 108 is continuously pressed. While the hot water supply SW 108 is being pressed, pressing of the water supply SW 110 is not accepted. That is, the hot water supply SW 108 and the water supply SW 110 perform the pre-press priority process.

  F High temperature setting operation

  When the power supply control for the hot water heater 42 is pressed in the ON state, the high temperature setting SW 104 is heated to a predetermined high temperature, for example, 93 [° C.] by only one pressing operation. After the boiling, the hot water temperature is set to an appropriate temperature range set to a high temperature until a predetermined temperature, for example, 90 [° C.]. Then, for example, the temperature is set to 85 [° C.] as the predetermined temperature. During the boiling, the high temperature display unit 116 is lit in orange, and the boiling completion temperature reaches, for example, 93 [° C.]. The high temperature display unit 116 is lit in green, the power supply control for the hot water heater 42 is shifted to the OFF state, and the high temperature display unit 116 is lit when in the high temperature appropriate temperature range (˜90 [° C.]).

  If the high temperature setting SW 104 is pressed during high temperature boiling, the high temperature boiling operation is stopped. In addition, after boiling, the power supply to the hot water heater 42 is turned off, and when the high temperature setting SW 104 is pressed again, the water is heated up to 93 [° C.] which is the above-described high temperature. In this case, even when the hot water temperature is less than 93 [° C.] or more than 90 [° C.], the high temperature display portion 116 is lit in orange. In addition, after boiling, when the temperature is less than the appropriate temperature range (90 [° C.]) and the temperature is 85 [° C.] or more, the normal temperature display unit 114 is lit in green to indicate that the temperature is within the appropriate temperature range of 85 [° C.].

  G Energy saving operation

  When the power supply control for the hot water heater 42 is in the OFF state, the pressing of the energy saving SW 96 is not accepted. When the energy saving SW 96 is pressed while the power supply control for the hot water heater 42 is ON, the energy saving mode is entered, and the energy saving display unit 124 is lit in orange, indicating that the energy saving mode is being executed. When the energy saving SW 96 is pressed in the energy saving mode, the energy saving mode is canceled and the energy saving display unit 124 is turned off. When the energy saving mode is being executed and the time is in the energy saving time zone, energy saving is performed, and the energy saving display unit 124 turns green.

  H Timer / Clock operation

  When the timer / clock SW 98 is pressed in the clock display state, the display becomes the timer display, and the mode shifts to the timer mode. When the timer / clock SW 98 is pressed in the timer mode, the display becomes a clock display. However, when the timer 84 is counting down, the countdown is continued.

  I Addition operation, subtraction operation, start / stop operation, setting operation

  When the addition SW 90 and the subtraction SW 92 are continuously pressed during the time change mode and when the timer display is switched, the time and the timer time are changed.

  When the start / stop SW 100 is pressed during the timer display (standby), the timer 84 is started. When the start / stop SW 100 is pressed during the countdown of the timer 84, the countdown is stopped, and the countdown is restarted by pressing again.

  When the setting mode switching SW 94 is pressed, the confirmation at the time setting and the start of the energy saving mode and the pressing after the start are ended, and switching according to the pressing is performed.

  J Clock display

  The clock display is generated by the ON state of the power source 74, and the time setting mode is set by continuously pressing the timer / clock SW98. The clock display blinks. In this state, the display is changed by the addition SW 90 or the subtraction SW 92, and the setting is confirmed by pressing the setting mode switch SW 94 or by continuing the no operation state for 10 seconds, for example. Let When the addition SW 90 is pressed during the time setting mode, 12: 01 → 12: 02 → 12: 03... And 12: 10 → 12: 20 → 12: 30... 13: 00 → 13: 30 → 14: 00 ・ ・ ・ 15: 00 → 16: 00 When the subtraction SW 92 is pressed in the time setting mode, 11: 59 → 11: 58 → 11: 57... 11: 50 → 11: 40 → 11: 30... 11: 00 → 10: 30 → 10:00 ... 9: 00 → 8: 00.

  K timer function

  When the timer / clock SW 98 is pressed, the display unit 88 becomes a timer display. The clock display shows hours and minutes, but the timer display shows minutes and seconds. In this case, the initial setting is 3.00. The maximum timer time is, for example, 60 [minutes], and the minute display is changed by pressing the addition SW 90 and the subtraction SW 92 during the timer display (standby). When the addition SW 90 is pressed, 3 → 3.30 → 4 → 4.30 → 5 →... 10 → 11. Thereafter, the maximum time is continuously changed to, for example, a maximum of 60 [minutes], which is the same as the clock. When the subtraction SW 92 is pressed, 3 → 2.30 → 2 → 1.30 → 1 → 0.30 → 00. When the start / stop SW 100 is pressed, the timer 84 counts down. Even during the countdown, the minute display can be changed by pressing the addition SW 90 and the subtraction SW 92. When the timer 84 shifts to 0:00, the buzzer 85 is sounded for a predetermined time, for example, 10 seconds.

  L Energy saving time setting

  For example, the energy saving time can be set up to two stages. The time setting method is the same as the time setting. If the first stage or the second stage is set, the energy saving mode is set.

  (1) When the energy saving SW 96 is pressed while the clock display state and the power supply control to the hot water heater 42 are ON, “stage 1” and “start” representing the first stage are displayed on the display unit 88. For example, the time display may be “-:-” for the first time, and the current setting time may be used for the second and subsequent times.

  When the setting mode switch SW 94 is pressed in this state, the display unit 88 displays “Stage 1” and “End”, and “Stage 2”, “Start”, and “Stage 2” representing the second stage are displayed. ”And“ End ”.

  (2) The time can be set by pressing the addition SW 90 or the subtraction SW 92, and the operation is the same as the time setting.

  (3) The setting contents are confirmed by pressing the setting mode switching SW 94. The state returns to the clock display after 10 seconds after no operation or no operation during each operation. If it is desired to cancel (clear) the setting, the setting mode switching SW 94 is used to match the stage to be canceled (either start or end), and the addition SW 90 and subtraction SW 92 are simultaneously pressed. At this time, the display becomes “-:-”, and the content can be confirmed by pressing the setting mode switching SW 94.

  Next, FIG.6 and FIG.7 is referred about control operation | movement of this drinking water supply apparatus. FIG. 6 is a flowchart showing a processing procedure in the control operation, and FIG. 7 is a flowchart showing a processing procedure of energy saving and heat retention as a subroutine.

  This processing procedure is a control procedure for cooling and heating heat retaining operation after setting processing such as initial setting of the apparatus by turning on the power, and this processing procedure is performed in parallel with control of other key operations and the like. Basically, it is repeatedly executed while the power is on.

  In this processing procedure, control during a normal operation time zone and energy-saving heat retention control as standby operation are included. In the normal operation time zone, the normal hot water temperature Tn of the hot water temperature THh (detected temperature of the hot water sensor 54), its lower limit temperature Tn1, the upper limit temperature Tn2, and the normal hot water temperature range ΔTn (= Tn2 to Tn1) are set. For example, Tn1 = 85 [° C.] is set as Tn1 and, for example, Tn2 = 87 [° C.] is set as the upper limit temperature Tn2. In this case, the normal hot water temperature range ΔTn (= Tn2 to Tn1 = 87 [° C] to 85 [° C] ) Temperature control is performed within the range. Even in the normal operation time zone, when a high temperature is set, for example, Th = 93 [° C.] is set as the upper limit temperature Th of the hot water temperature THh, and the upper limit temperature 93 [° C.] is controlled.

  Further, the first cold water temperature TLa and the second cold water temperature TLb are set as the cold water temperature THc (detected temperature of the cold water sensor 20) in the normal operation time zone, and the cold water temperature TLa is, for example, TLa = 8 [° C. ], For example, TLb = 12 [° C.] is set as the cold water temperature TLb. In the case of setting TLa = 8 [° C.], for example, Ta1 = 7 [° C.] is set as the lower limit temperature Ta1, and for example, Ta2 = 9 [° C.] is set as the upper limit temperature Ta2. When TLb = 12 [° C.] is set, for example, Tb1 = 11 [° C.] is set as the lower limit temperature Tb1, and Tb2 = 14 [° C.] is set as the upper limit temperature Tb2. As a time condition for starting or ending the cooling operation, for example, TC1 = 5 [minutes] after the cooling stop at the start of the cooling operation, for example, TC1 = 5 [minutes], and an elapsed time from the start of the cooling at the end of the cooling operation. For example, TC2 = 5 [minutes] is set as TC2.

  In the time zone of the energy saving and warming operation as the standby operation, both the set temperature in the case of hot water and the set temperature in the case of cold water are set to temperatures close to room temperature, thereby reducing power consumption. That is, the energy-saving hot water temperature The, its lower limit temperature Te1, and its upper limit temperature Te2 are set with respect to the hot water temperature THh at the time of energy saving on the hot water side, and the lower limit temperature Te1 is, for example, Te1 = 65 [° C.], upper limit temperature Te2 = 67 [ In the time zone other than the hot water side energy saving time TE, the hot water temperature Tn, its lower limit temperature Tn1, and its upper limit temperature Tn2 are set. The lower limit temperature Tn1 is, for example, Tn1 = 85 [° C], and the upper limit temperature Tn2 For example, Tn2 = 87 [° C.] is set.

  Further, in the time zone of the energy-saving heat retaining operation, the energy-saving chilled water temperature Tce, its upper limit temperature Tce2, and its lower limit temperature Tce1 are set with respect to the chilled water temperature THc at the time of chilled water side energy saving, and the upper limit temperature Tce2 is, for example, Tce2 = 14 [ ° C], the lower limit temperature Tce1 is set to, for example, Tce1 = 11 [° C], and in the heat retention operation other than energy saving, the upper limit temperature Tc2 and the lower limit temperature Tc1 are set with respect to the cold water temperature THc. , Tc2 = 8 [° C.], and the lower limit temperature Tc1 is set to Tc1 = 7 [° C.], for example, and is controlled within these ranges.

  Therefore, when the energy saving mode is designated and the current time is in the energy saving mode time zone (step S1), the energy saving warming operation is executed (step S10). The warming operation as a time zone is performed.

  This processing procedure will be described in the order of steps. As shown in FIG. 6, when the heat insulation operation is started, it is determined whether or not it is an energy saving time (step S1). It is determined whether or not the temperature is lower than a predetermined temperature, for example, 85 [° C.] (step S2). If it exceeds 85 [° C.], it is determined whether or not the temperature is set high (step S3). If not set, it is determined whether or not the hot water temperature THh is equal to or higher than a predetermined high temperature, for example, 87 [° C.] (step S4). An OFF state is set (step S5). If the hot water temperature THh is lower than 85 [° C.] in step S2, the power supply to the hot water heater 42 is turned on (step S9). If the hot water temperature THh is set in step S3, the hot water temperature THh is It is determined whether or not a predetermined high temperature is, for example, 93 [° C.] or higher (step S6). If it is 93 [° C.] or higher, the power supply to the hot water heater 42 is turned off (step S7), and the high temperature setting is terminated. (Step S8) In step S6, if the hot water temperature THh is less than 93 [° C.], the power supply to the hot water heater 42 is turned on (step S9).

  In such power supply control of the hot water heater 42, when the energy saving time setting is executed, the energy saving heat retention is executed (step S10).

  In contrast to such control on the hot water side, in the cooling control of the drinking water 4, it is determined whether or not the cold water temperature setting is a predetermined temperature, for example, 8 [° C] (step S11), and is 8 [° C]. In step S12, it is determined whether or not the chilled water temperature THc exceeds a predetermined temperature, for example, 9 [° C.]. If the chilled water temperature THc exceeds 9 [° C.], is the cooling being performed? If it is not during cooling, it is determined whether or not a predetermined time, for example, 5 minutes or more has elapsed after stopping the cooling (step S14). In this case, 5 minutes or more have elapsed. If so, cooling is started (step S15).

  In step S12, when the chilled water temperature THc is 9 [° C.] or less, it is determined whether or not the chilled water temperature THc is a predetermined temperature, for example, 7 [° C.] or less (step S16). If it is, it is determined whether or not it is being cooled (step S17). If it is being cooled, it is determined whether or not a predetermined time, for example, 5 minutes or more has elapsed after the start of cooling (step S18). In this case, if 5 minutes or more have elapsed, the cooling is stopped (step S19).

  In step S11, if the chilled water temperature setting is not 8 [° C.], it is determined whether or not the chilled water temperature THc exceeds a predetermined temperature, for example, 14 [° C.] (step S20), and the chilled water temperature THc is the predetermined temperature. For example, if it exceeds 14 [° C.], it is determined whether or not cooling is in progress (step S21). If it is not in cooling, whether or not a predetermined time, for example, 5 minutes or more has elapsed after cooling is stopped. (Step S22). In this case, if 5 minutes or more have elapsed, cooling is started (step S23).

  In step S20, it is determined whether or not the chilled water temperature THc is a predetermined temperature, for example, 11 [° C.] or less (step S24). If it is 11 [° C.] or less, it is determined whether or not cooling is in progress ( In step S25), if cooling is in progress, it is determined whether or not a predetermined time, for example, 5 minutes or more has elapsed after the start of cooling (step S26). In this case, if 5 minutes or more have elapsed, cooling is performed. Stop (step S27).

  In this heat retaining operation, during the energy saving time, the energy saving operation is executed as shown in FIG. 7 which is the details of the energy saving heat retaining operation (step S10). This processing procedure will be described generally. The warm water is kept at 65 [° C.] to 67 [° C.] (step S102 to step S105), and the cold water is kept at 11 [° C.] to 14 [° C.] (step S111). -Step S117).

  In addition, the control shifts to a normal heat retention temperature before the end of the energy saving time so that it can be used immediately at the end of the energy saving time (steps S106 to S109). In the case of the hot water side, if the time required to raise the predetermined temperature, for example, 65 [° C] hot water to 85 [° C] is X minutes, the control is started so that the normal temperature is maintained from X minutes before the end time. (Determination in step S101). Similarly, in the case of the cold water side, for example, if the time required for lowering the cold water of 12 [° C.] to 8 [° C.] is Y minutes, it is 8 [° C.] from Y minutes before the end time (judgment in step S110). Control is started so that the temperature is maintained (steps S119 to S126). When the set temperature on the cold water side is 12 [° C.] (step S118), the temperature is kept at 11 [° C.] to 14 [° C.] by the same temperature control during normal and energy saving modes (step S111 to step S117). Here, the respective times are set to X minutes and Y minutes, but time correction may be performed based on actual control results.

  Therefore, the processing procedure will be described in the order of steps. It is determined whether or not the warm water side energy saving completion preparation time has come (step S101). If the time has not come, the warm water temperature THh is set to a predetermined temperature, for example, 65 [ If it is not less than 65 [° C.], it is determined whether or not the hot water temperature THh is equal to or higher than a predetermined temperature, for example, 67 [° C.] (step S103). If the temperature is 67 [° C.] or higher, the hot water heater 42 is turned off (step S104). If the hot water temperature THh is less than 65 [° C.] in step S102, the hot water heater 42 is turned off. Is turned on (step S105). In step S101, when the warm water side energy saving completion preparation time has come, it is determined whether or not the hot water temperature THh is lower than a predetermined temperature, for example, 85 [° C.] (step S106), and less than 85 [° C.]. Otherwise, it is determined whether or not the hot water temperature THh is equal to or higher than a predetermined temperature, for example, 87 [° C.] (step S107), and if it is equal to or higher than 87 [° C.], the hot water heater 42 is turned off ( In step S108), and in step S106, when the hot water temperature THh is less than 85 [° C.], the power supply to the hot water heater 42 is turned on (step S109).

  Next, it is determined whether or not the chilled water side energy saving end preparation time has come (step S110). If the chilled water side energy saving end preparation time has not reached, the chilled water temperature THc is set to a predetermined temperature, for example, 14 [° C. ] (Step S111). If the chilled water temperature THc exceeds 14 [° C.], it is determined whether or not cooling is in progress (step S112). For example, it is determined whether or not a predetermined elapsed time after the cooling operation has stopped, for example, 5 minutes or more has elapsed (step S113), and if 5 minutes or more have elapsed after the cooling operation has stopped, the cooling operation is started. (Step S114), the process returns to Step S1 (FIG. 6).

  In step S111, when the cold water temperature THc is 14 [° C.] or less, it is determined whether or not the cold water temperature THc is a predetermined cold water temperature, for example, 11 [° C.] or less (step S115). If it is 11 [° C.] or less, it is determined whether or not cooling is in progress (step S116). If it is cooling, it is determined whether or not a predetermined time, for example, 5 minutes or more has elapsed after the start of cooling. If more than 5 minutes have elapsed since the start of cooling, the cooling is stopped (step S118), and the process returns to step S1 (FIG. 6).

  By the way, if the cold water side energy saving completion preparation time has elapsed in step S110, it is determined whether or not the cold water set temperature is 8 [° C.] (step S119), and if the cold water set temperature is 8 [° C.]. For example, it is determined whether or not the chilled water temperature THc exceeds 9 [° C.] (step S120). If the chilled water temperature exceeds 9 [° C.], it is determined whether or not cooling is being performed (step S121). ) If it is not under cooling, it is determined whether or not 5 minutes or more have elapsed after stopping cooling (step S122). If 5 minutes or more have elapsed after stopping cooling, cooling is started (step S123). Return to step S1 (FIG. 6).

  In step S120, if the chilled water temperature THc is 9 ° C or less, it is determined whether the chilled water temperature THc is 7 ° C or less (step S124), and if the chilled water temperature THc is 7 ° C or less. For example, it is determined whether or not cooling is in progress (step S125). If cooling is in progress, it is determined whether or not 5 minutes have elapsed since the start of cooling (step S126), and 5 minutes or more have elapsed since the start of cooling. If so, cooling is stopped (step S127), and the process returns to step S1 (FIG. 6).

[Second Embodiment]

  Next, FIG. 8 is referred about 2nd Embodiment. FIG. 8 is a diagram illustrating a part of the drinking water supply apparatus according to the second embodiment. In FIG. 8, the same parts as those in FIG.

  In the first embodiment, the case where the drinking water 4 is supplied by the gallon bottle 6 has been described. However, in the second embodiment, the drinking water 4 is supplied from the back-in box 130. is there.

  The back-in box 130 is configured such that a bag 132 made of vinyl or the like containing drinking water 4 is housed in a housing 134 such as cardboard, and the bag 132 contracts as the drinking water 4 is consumed. The back-in box 130 is installed in the upper part of the housing 3, and a water supply pipe portion 136 on the back-in box 130 side is connected to a water supply pipe 138 on the cold water tank 10 side by a joint 140. When the water tap 142 in the water supply pipe 136 is opened, the drinking water 4 in the bag 132 is supplied into the cold water tank 10 from the water supply port 144 opened to the lid 143 in the cold water tank 10, and the cold water tank 10 Filled with drinking water 4 to the water level at outlet 146.

  Even with such a configuration, similarly to the gallon bottle 6, the cold water tank 10 and the hot water tank 40 can be filled with the drinking water 4 at a predetermined water level, and cold water and hot water can be supplied.

As described above, the most preferable embodiment and the like of the present invention have been described. However, the present invention is not limited to the above description, and is described in the claims or disclosed in the specification. It goes without saying that various modifications and changes can be made by those skilled in the art based on the above gist, and such modifications and changes are included in the scope of the present invention.

The present invention relates to control of cooling and / or heating of drinking water, and provides a drinking water supply device with reduced energy loss as well as control to an appropriate temperature requested by a user. The set temperature value on the first tank side and the set temperature value on the second tank side are changed according to the time zone, the cooling temperature of the drinking water in the first tank, and the drinking water in the second tank Since the heating temperature is controlled, drinking water at the temperature required by the user can be supplied during normal operation time, and unnecessary heating and cooling can be prevented during standby operation time, thus saving energy. Is useful.

DESCRIPTION OF SYMBOLS 2 Drinking water supply device 3 Case 4 Drinking water 6 Gallon bottle 8 Water receiving port 10 Cold water tank 20 Cold water sensor 22 Cooling device 40 Hot water tank 42 Hot water heater 46 Water supply pipe 54 Hot water sensor 64 Control device 104 High temperature setting switch

Claims (3)

A first tank for storing drinking water supplied from a container for drinking water to be installed;
Cooling means for cooling the drinking water in the first tank;
A second tank for storing the drinking water supplied from the drinking water container;
Heating means for heating the drinking water in the second tank;
First temperature detecting means for detecting the temperature of the drinking water in the first tank;
Second temperature detecting means for detecting the temperature of the drinking water in the second tank;
A normal operation time zone and a standby operation time zone are set, and the cooling means is operated in accordance with the detected temperature of the first temperature detection means in the normal operation time zone, and the first tank Control means for controlling the drinking water to the cold water set temperature, operating the heating means in accordance with the temperature detected by the second temperature detection means, and controlling the drinking water in the second tank to the hot water set temperature; ,
A drinking water supply device comprising:   The drinking water supply device according to claim 1, wherein the warm water set temperature in the standby operation time zone is set to a value closer to normal temperature than the set temperature in the normal operation time zone.   Provided with a forced temperature change switch, the control means controls the heating temperature of the heating means by changing the hot water set temperature to a high or low value based on the operation of the forced temperature change switch, or the cold water set temperature The drinking water supply device according to claim 1 or 2, wherein the cooling temperature of the cooling means is controlled by changing the value to a high or low value.

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